Hi! I tried playing your game as shown in the intro of the video below. Here's a direct visual of the error. I think it'll help you with fixing it. Excited to actually giving it a play once it's ready :)
Aaa I'm really sorry, I didn't notice the bugs in the 1.20 version. So if you want to make a gameplay, I really recommend to play the 1.25 ver of it. Sorry for the inconvenience.
